Expansible shoe last



C. SCHEVITZ.

EXPANSIBLE SHOE LAST.

APPLICATION FILED AUG.29. 192i.

" Patented Aug. 22., 1922?.

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INVENTOR ATTORNEY uw-Immn null WITNESSES: /6 5 3 c. scHEvnz.

EXPANSIBLE SHOE LAST. 3

APPLICATION FILED ALIG.29, I921.

Patented Aug. 272, 19227.

3 SHEETS-SHEET 2.

INVENTOR ATTORNEY c. SCHEVITZ. EXPANSIBLE SHOE LAST.

APPLICATION FILED AUG.29, I921.

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INVENTOR ATTORNEY 53 @FFHQ;

CARL SCHEVITZ, OF JACKSONVILLE, FLORIDA 1 l i i EXEANSIBLE SHOE LAST. il/

Specification of Letters Patent. Patgntrgd Aug, 22, 1922.

Application filed August 29, 1921. Serial No. 496,352.

To all whom it may concern:

Be it known that I, CARL Scrmvirz, a citizen of the United States, residing at Jacksonville, in the county of Duval and State of Florida, have invented new and useful Improvements in Expansible Shoe Lasts. of which the following is a specification.

This invention relates to shoe stretching means, the present invention being an improvement over that forming the subject matter of an application filed'by me on Feb, 21, 1921, Serial No. 446,654.

The general object of the present invention is to reduce the size of the device so that it can be used in small sized shoes such as those worn by ladies and children by eliminating many of the parts used in the former device and at the same time simplifying the construction and operation of the device.

Another object of the invention is to make the heel member vertically adjustable so that the device can be used with shoes having high heels or low heels.

A further object of the invention is to make the instep stretching member vertically adjustable and to give the toe stretching member a certain amount of play so that it will adjust itself on the sole as it is being forced into the toe.

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claims.

In describing my invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughoutthe several views, and in which Figure 1 is an elevation of the invention.

Figure 2 is a similar view with one of the side plates removed and some of the parts in section.

Figure 3 is a'section on approximately the line 3-3 of Figure 6. v

Figure 4 is a sectionon approximately the line 44 of Figure 6.

Figure 5 is a top plan view.

Figure 6 is a section on approximately the line 6-6 of Figure 4.

Figure 7 is asection on approximately the line 7-7 of Figure 2.

Figure 8 is a detail view of the key for operating the device.

Figure 9 is adetail view of the means for connecting the operating lever for the toe stretching member with its actuating shaft. In these views 1 indicates a frame which 1s formed in the general shape of a shoe and consists of a vertical part'and a toe part which extends forwardly from the lower end of the vertical part. The side pieces of the toe part of the frame are provided with the slots 2. A channel shaped frame 3 is slidably mounted at the front of the upper part of the frame, said frame being adjusted vertically by means of the screw shaft 4: which engages the nut 5 on frame 3 and which is rotatably supported at the top of the main frame by the collars 6, said shaft having a square end 7 for receiving the socket of the key 8, said key being shown in Figure 8. Frame 3 is provided with projections 3 which engage slots 9 in the main frame' The frame 3 is provided with a curved depending part 10 to which the instep stretching member 11 is pivoted. Thus the instep member can be tilted so that the device can be placed in. the shoe and then the member is swung back upon the depending part 10 and by raising the frame 3 by means of the shaft i and the key this member 11 can be brought against the instep of the shoe to stretch the same. It will be seen that the instep member is moved bodily so that the instep of the shoe can be stretched to any desired extent.

A lever 12 is swung from a shaft 13 by means of the links 14. This lever has its lower end curved to conform to the toe part of the main frame and its lower end is pivotedto a link 15 which passes through an opening in the toe end of the frame and this link is pivoted in turn to the stem 16 of the toe stretching member 17. This connection of the toe member with its operating lever permits the toe member to adjust itself in the toe as it is being moved. The upper end of the lever 12' is pivoted to a yoke member 18 which is swiveled. to the screw shaft 19 which passesthrough anut 20 in the top of the main frame and has a square upper end for receiving the key 8. The yoke member is guided in the main frame by having its extensions 18 extending through slots 21 in the main frame. This yoke memberis so formed thatit will engage the inner walls of the main frame as well as the walls of the slots 21 and thus prevent bending of the parts and properly guide the parts in their movement.

The means for actuating the side stretching members 22 consists of levers 23, and 24 arranged on each side of the toe stretching members, each lever 2a being swung from shaft 13 by the slotted link 25. The lower ends of the levers 23 and 24 are bent at right angles, as at 26, and their extremities are provided with notched cars 27 which engage the slots 2 in the toe part of the main frame. Lever 24 is provided with a horizontal ear 28'. which engages a notch 29 in the upper edge of lever23, these parts being-designed top'ermit a certain amount of-movement of lever 24 in relation to lever 23 but as soon as the ear strikes one end or the other of the notch both levers will move in unison: Lever 23 has its rear end 23 provided with raelr teeth upon its upper edge: andpassing through a slot in the rear part of thema'in frame. p

"The upper ends of levers 24 are pivoted to brackets 30 which are swiveled to the lower ends of the screw shafts 31 which pass through screw threaded holes in a cross bar 32 which is carried by the main frame and these screw-shafts have square upper ends for engaging the key. The brackets lOhave parts engaging the main frame and the yoke member 18 for guiding and preventing bucking of the movable parts. The rotation of the screw shafts 31 will actuate the levers 24 so asto' move the bent end 26 of each lever towards or away-from part 260i its companion levers 23. This independent movement of lever 24 is limited, however, for as soon as ear 28 engages either end of the notch 29 in the companion lever, said comp'alnion lever will be caused to move with the actuating lever.

The side stretching members 22 are pray vided with the toggle levers 22", as described in the before mentioned application, but the ends 22" of these levers are reduced so that when they are gripped between the parts 26 the member 22 will be moved to a greater extent than the member shown inthe before mentioned ap 'alic'ation. These toggle levers are passed between the ears 27 and between the parts 26' of the actuating levers as described in the former application so that the side stretching member can. be adjusted along the device by the actuating lever and when it has been properly adjusted the lever 23 is locked in position by the locking member '32 engaging the'racl; teeth on lever23 which prevents'further movement of lever 23 v so thatfurther movement of the companion lever 24E-willea'use the parts 26 to approach each other and thus expand the toggle levers of the side stretching memberby forcing the eiids 22" of said levers together; Thus the shoe is stretched at the desired place. Part 32 is similar to that described in thebefcre mentioned application and; is slidably arrange at the re r of the frame, Tilt-s m is actuated by the handle 33 which extends through .anopeninginthe top of the frame and which has a reduced portion, engaging shoulders on the handle, for holding the same in'raised position and the part 82 out of engagement with the rack teeth. As before stated these parts are similar to those ing member outwardly to stretch the shoe. 1}

The heel frame 3 is vertically adjustable on a yoked-5 by being screwed to the-yoke by the screw 46 which passes through a longitudinal slot 47 in the heelframe. Thus this frame can beadjusted vertically so as to make the device a'djustablefor' shoes having heels of different heights. The heel frame is also movable towardsand away from the rest of the device by means of, the handle member 4 8, the lever 49 which en gages the slotted lug 50' and the handle sup porting member 51', these parts being substantially the same as shown in the before mentioned application. The arms52of' the yoke are pro ided with rack teeth and these arms are slidably mounted in the guides 53 formed in the sides of the main frame. The rack teeth are engaged by the locking plate o i,slidably'mounted at the rear of the-main frame and which is normally held in engagement with the rack teeth by the spring 55 located on the rod 56 which: is pivoted to the member 51 and has its lower end. engaging the locking plate 54; so that when the handle member 47-8 is actuated the locking plate will be raised to; permit the lever 49 to move the parts inwardly. As all of theseparts are substai-itia' lly the same as shown in the before mentioned application it is not necessary to describe them in detail. v

' The parts are enclosed by the side plates 57' and the bottom plate 58.

It will thus be seen that the constru-cs tion of'the presentapplication is such that the parts composin-gthe same are compactly assembled so that the devicecan be made small. enough to fit ladies? and childrens shoes and. that the heel frame can be adjusted to suit shoes with high and low heels. The toe of the shoe can be stretched by the toe stretching member and either-or both 'sidesof the shoe can be stretched for bunions or the like by the side stretching members, the operating parts of these members being substantially the same as those shown in the before mentioned application.

It is thought from the foregoing description that the advantages and novelfeatures of my invention will be readily apparent.

I desire it to be un e s that I may make changes in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claims.

W hat I claim is 1. A shoe last of the class i'lescribed comprising a main frame, a heel frame slidably connected with the main frame, manually operated means for adjusting the heel frame and means permitt ng the heel frame to be adjusted vertically to suit shoes with high and low heels, such means consisting of a supporting member for the heel frame and. a screw and slot connection between the same and heel frame.

2. A shoe last of the class described coinprising a main frame composed of a vertical part and a forwardly and downwardly curved toe part, a heel frame slidably connected with the rear of the main frame, manually operated means for adjusting the heel frame towards and away from the main frame, means to permit adjustment of the heel frame vertically, shoe stretching parts associated with the toe part of the main frame and actuating means within the main frame connected with such stretching parts.

3. A. shoe last of the class described comprising a main frame composed of a vertical part and a forwardly and downwardly curved toe part, a heel frame slidably connected with the rear of the main frame, manually operated means for adjusting the heel frame towards and away from the main frame, means to permit adjustment of the heel frame vertically, shoe stretching parts associated with. the toe part of the main frame, and actuating means within the main frame connected with such stretching parts, such actuating means including levers swingingly supported within the main frame and screw shafts rotatably mounted in the main frame and engaging the levers.

a. A. shoe last of the class described com prising a main frame including a vertical part and a forwardly and downwardly curved toe part, a member vertically slidable on the front of the main frame and having a curved depending part, an instep stretchin; member pivotally secured to the lower end of the depending part and a screw shaft ingly supported in the main mounted in the main frame and engaging a screw threaded socket in the slidable memher.

5. A shoe last of the class described comprising a main frame including a vertical part and a curved toe part, a lever swingframe and havlower end, a link pivotally connected with said lower end, a toe stretching member pivotally connected with the link, the toe of the main frame having a hole therein through which the link extends and a screw shaft rotatably mounted in the frame and having its lower end swiveled to the upper end of the lever.

6. A shoe last of the class described comprising a main frame, shoe stretching members associated therewith, a shaft in the rain frame, levers arranged in the main frame, links swingingly connecting the levers with the shaft, means for connecting the lower ends of the levers with the stretching members and screw shafts supported in the main frame and connected with the upper ends of the levers.

7. A. shoe last of the class described comprising a main frame, a pair of levers swingingly supported therein, a companion lever associated with each lever of the pair,

ing a curved said levers having rightangular extensions at the lower ends, screw shafts mounted in the main frame and connected with the first levers for actuating the same, means for permittng a certain amount of movement of the first levers relative to the companion levers, means for locking the companion levers against movement and a side stretching member having toggle levers connected therewith, with their extremities placed between the extensions of the levers at either side of the device.

8. A. shoe last of the class described comprising a main frame, a side stretching member, toggle links connected therewith, the outer extremities of the outer links being reduced, clamping members in the frame for engaging the said reduced extremities and means for actuating the clamping members.

In testimony whereof I affix my signature.

CARL SCHEVITZ. 

